Black and white image of SEAC control room. A man is seated at the control console at the rear of the room. Verso: "SEAC Computing room at the National Bureau of Standards. Control console is at the far end of the room, and the computer proper is at the left. To the right are several of the external storgage units which store on magnetic tape such information as coded subroutines, instructions to the machine, and numerical data, as well as the entire coded program for a problem and its solution when the computation is completed. National Bureau of Standards."